Average Co-Inventor Count = 1.33
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Tdk Electronics Company, Limited (2 from 333 patents)
2 patents:
1. 4298631 - Method for smoothing both magnetic coat layers of magnetic recording
2. 4254864 - Protective jacket for plane magnetic recording medium